In the Performance Driven Design Approach (PDDA) structural performance is the target, from which the important material properties are identified. The relationships between material processing, material microstructure, and material properties are then employed to create materials satisfying the properties required, and thus meeting the targeted structural performance. For PDDA to be successful, the quantitative link between material microstructure, processing and materials properties, provide by micromechanics, is critical.
 |
 |
|
|
|
|
|
|
|
|
|
|
 |
 |
 |
 |
 |
 |
 |
 |
|
|
|
 |
 |
 |
|
|
|
 |
|
 |
|
|
|
|
|
|
|
 |
|
| Integrated Structural-Materials Design (ISMD) approach illustrated as a merging of two approaches, the Performance Based Design Concept (PBDC) approach related to structures, involving structural mechanics and the Performance Driven Design Approach (PDDA) related to materials, involving micromechanics. |
|
 |
|
|
|
 |
|
 |
|
|
 |
|
|
 |
|
|
 |
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
The new Performance Based Design Concept (PBDC) shifts from prescriptive requirements in structural detailing to structural performance specifications, in terms of operability, repairability, life-safety, or collapse prevention subsequent to specified load levels. Material properties and structural shape are optimized to satisfy the performance objectives, employing the tool of structural mechanics.